First world:
So fundamentally, this is the story of the First World: in a world of Earth much like ours of the present, humanity has advanced technologically. However, having discovered the Mother Flame, an advanced form of nuclear power, humans are able to attain endless energy. With it, humanity expands its industrialization, covering the entire Earth in factories, buildings, and skyscrapers. Most ambitious of them all is the creation of what would be called the Red Line, a colossal continent where only the chosen privileged can live, while slaves have to toil away to provide the Mother Flames that power the civilization of the privileged. Some colonized the Moon, founding the city of Birka, though later were forced to abandon it due to a lack of resources. Even further, it seems this may be the time when the three Ancient Weapons of mass destruction were crafted, consisting in part of three colossal ships. The wealth gap furthers more than it ever has before and suffering in desperation, the slaves pray for the Sun God to appear. Eventually however, the Earth God grows enraged by this abuse of the Mother Flame, and unleashes the Red Line, the Hellflame Serpent, to engulf the world in a nuclear war, scorching the entire land. All that remains is the final verse: “Those men would be unable to meet again”.
Thus ends the First World.
Second world:
So fundamentally, this is recanting the story of the Void Century that we are mostly familiar with. From the devastation of the previous calamity, life and civilization were reborn again. The Forest God created the devil fruits through a great tree, but as the Mother Flame became rediscovered, it was only used to further stoke the flames of war, with Imu reawakening the Ancient Weapon Uranus to smite the world. The people of the D. Clan, with the help of the lunaria, dreamed of one day bringing the Dawn, but Joyboy was killed, and the Celestial Dragons became gods. Imu continued to rampage, drowning the world in 200 meters of sea level, and despite its best efforts, the Ark Noa was not able to fulfill its promise. All that remains is the final verse: “Those men would be unable to meet again”.
Thus ends the Second World.